MegaLife ARV Series, Service Manual, Page: 140 / 172

MegaLife ARV OUTDOOR UNIT
–
ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual
140
2.5 Temperature abnormal (3)
Code
Definition Possible reason for error code
FH Discharge temperature too low
Compressor failure
E3
【
T
da
】
1# Compressor discharge
temperature too high
1.System lack of refrigerant
2.DC inverter Compressor failure
3.Compressor air return filter block
4.EXV block
5.Gas stop valve was closed
6.Liquid stop valve was closed
7.dischargr sensor failure
8.Outdoor unit PCB failure
E4
【
T
db
】
2# Compressor discharge
temperature too high
2.6 1# Comp. and drive failure (11)
Code
Definition Possible reason for error code
31
Drive Module IPM protection (F0)
1. Low supply voltage, excessive current
2. Supply voltage exceed limit
3. Outdoor fan stop or low speed
4. Drive module temp. too high
32 Drive Module hardware protection
33 Drive Module software protection
34 Drive module unconnected
1.The connect of driving module and DC
inverter compressor incorrect
2.Driving module failure
3.Compressor failure